Before Justin Bieber or the Jonas Brothers were even a twinkle in their parents' eyes, family group The Jackson 5 was a blockbuster teen sensation.
Michael Jackson provided lead vocals for this 1970 smash hit when he was just 11 years old. The song's message is that love is "easy as ABC, 123" -- uncomplicated and fun, just right for the elementary school set. But it's not only kids who love this song; its boppy rhythms and catchy hooks appeal to music fans of all ages. The only downside to listening to "ABC" in the car? You have to limit yourself to dancing in your seat.